TWI520704B - Rotatably dinning plate with an angle adjusting function - Google Patents

Description

Adjustable angle rotary rack

The present invention provides an angle-adjustable rotating shelf, and more particularly to a rotating shelf that is mounted to a child seat and that is adjustable in relative angle to the child seat.

As the demand for various children's products continues to expand, the variety of child seats is becoming more and more numerous, and the accessories used with the child seats are becoming more and more complete. In order to facilitate the feeding of children in the child seat, a child seat with a shelf has appeared on the market. When the child is seated in the child seat, the shelf can be used as a tray carrier to facilitate parental care of the child.

However, in order to enhance the stability of the existing child seat, most of them are fixedly connected to the child seat, so that the child is inconvenient to enter and exit the child seat, and even is easily injured by the collision of the rack. . The detachable rack is connected to the child seat. Although the child can easily enter the child seat after disassembly, the steps of disassembly and installation are added, which makes the operation more troublesome. In addition, the detachable rack is also fixed relative to the child seat after the child seat is installed, and cannot be adjusted to meet different needs. Therefore, how to design a shelf that can adjust the position relative to the child seat has become an important topic in the design of children's products.

The invention provides an adjustable angle rotating shelf, which is mounted on a child seat The above problem can be solved by adjusting the relative angle with the child seat on the chair.

The patent application scope of the present invention discloses a rotating rack which is installed at one side. The child seat is used to place a container, and the rotating rack comprises a storage table, a fixing base, a positioning seat, an elastic component and a supporting base. The mounting base includes a connecting cavity, the fixing seat is fixedly disposed in the connecting cavity of the storage table, the positioning seat includes a first engaging portion, and the positioning seat is slidably disposed in the connecting cavity, and The elastic element is disposed between the fixing seat and the positioning seat. The support base is connected to the storage platform, and one end of the support base protrudes from a latching seat and is provided with a second engaging portion. The engaging seat is pivotally connected in the connecting cavity, so that the storage platform can be Rotating relative to the support base, and the elastic component is used to drive the first engaging portion to selectively engage the second engaging portion.

According to the patent application of the present invention, the positioning seat is circumferentially fixed and slidably disposed in the connecting cavity. The positioning seat is disposed at one end of the second engaging portion, and the first engaging portion is disposed. The first engaging portion protrudes from the end of the positioning seat.

The patent application scope of the present invention discloses that the first engaging portion includes a plurality of first engaging teeth, and the second engaging portion correspondingly includes a plurality of second engaging teeth and surrounds one of the engaging seats. The central shaft is disposed, and the elastic element is configured to drive the plurality of first engaging teeth to engage the plurality of second engaging teeth.

The patent application scope of the present invention discloses that the first engaging portion includes 12 first engaging teeth, and the second engaging portion includes 12 second engaging teeth, and any two adjacent first engaging teeth The angle between the teeth or any two adjacent second engaging teeth is substantially 30 degrees.

The patent application scope of the present invention discloses that the outer side wall of one of the engaging seats is formed with a stop shoulder, and one inner side wall of the positioning seat is formed with a sliding groove, and the sliding groove is a circular arc-shaped concave structure, and the stop is The shoulder is slidably mounted in the sliding groove, and the stop shoulder slides in the sliding groove when the positioning seat rotates.

The patent application scope of the present invention discloses that the sliding groove is an arc chute, and the arc chute has an angle of substantially 180 degrees.

According to the claimed invention, the fixing base includes a hollow chamber, and one end of the hollow chamber is formed with an opening, and the inner side of the fixing base protrudes to form two elastic arms.

The patent application of the present invention discloses that one end of the engaging seat is formed with an annular groove, the engaging seat is pivotally connected to the fixing seat, and the two elastic arms are engaged in the annular groove.

The patent application scope of the present invention discloses that the storage platform further includes a pivoting portion and at least one accommodating space, and the connecting cavity is connected to the pivoting portion.

The patent application scope of the present invention discloses that a recessed hole is formed in one side wall of the accommodating space, the shape of the container corresponds to the shape of the accommodating space, and an outer side wall of the container is formed with a bump, the convex The point is used to engage the recessed hole, thereby fixing the container in the accommodating space.

The patent application of the present invention discloses that the child seat comprises a T-shaped connecting portion, and the supporting seat is correspondingly provided with a connecting groove, and the T-shaped connecting portion is inserted and connected to the connecting groove.

The patent application scope of the present invention discloses that a snap hole is disposed on the T-shaped connecting portion, the rotating shelf further includes a latching member and a first spring, and a central portion of the latching member is pivotally connected to the On the support base, one end of the engaging member is formed with a snap hook and the other end is formed with a quick release button The pressing portion is disposed between the inner side wall of the support base and the quick release pressing portion to engage the engaging hook with the engaging hole.

According to the patent application of the present invention, the support base further includes a first connecting member and a second connecting member. One end of the second connecting member is formed with a pivoting shaft, and the first connecting member is pivotally connected by the pivoting shaft. In the second connector.

The patent application of the present invention discloses that the first connecting member pivots relative to the second connecting member in a front-rear direction of the child seat.

According to the claimed invention, the rotary rack further includes a positioning mechanism disposed between the first connecting member and the second connecting member, wherein the positioning mechanism is configured to fix the first connecting member to the first connecting member. On the second connector.

The patent application scope of the present invention discloses that the positioning mechanism includes a gear, a second spring and a third engaging portion. The gear is slidably sleeved on the pivoting shaft, the second spring is disposed between the gear and the first connecting member, and the third engaging portion is disposed on the second connecting member and surrounds the a pivoting shaft, the third engaging portion includes a plurality of third engaging teeth, and the second spring drives the gear to selectively engage the third engaging portion when the first connecting member rotates.

One end of the storage rack of the rotating rack of the present invention is provided with a connecting cavity, and the fixing seat is fixed in the connecting cavity, and one end of the supporting seat protrudes with a clamping seat and is pivotally connected in the fixing seat, and the storage table can be opposite to the supporting seat Turn. At the same time, the positioning seat is slidably disposed in the connecting cavity of the storage table and fixed in the circumferential direction of the connecting cavity. When the storage table rotates, the positioning seat also rotates. The elastic element is disposed between the fixing seat and the positioning seat, the positioning seat is provided with a first engaging portion, and the supporting seat is correspondingly provided with a second engaging portion. When the storage table rotates, the positioning seat compresses the elastic element and is connected Sliding inside the cavity, this When the first engaging portion is separated from the second engaging portion, the angle of the storage table relative to the child seat can be adjusted. When the angle adjustment ends, the spring drive positioning seat slides downward to engage the first engaging portion with the second engaging portion, and the positioning seat is fixed to the support base. Therefore, the present invention can be lifted before the rotating shelf is removed, and the child is allowed to enter and exit the child seat by rotating the relative position of the storage rack to the child seat, which has the advantages of simple operation and quick operation.

1‧‧‧Rotating rack

2‧‧‧Children's seat

3‧‧‧Stores

30‧‧‧First accommodation space

31‧‧‧Second accommodation space

310‧‧‧ recessed hole

32‧‧‧ pivotal department

33‧‧‧Connecting cavity

4‧‧‧ Container

41‧‧‧Bumps

5‧‧‧Upper cover

6‧‧‧ Fixed seat

60‧‧‧Flexible arm

7‧‧‧ Positioning Block

72‧‧‧First Joint Department

721‧‧‧First engagement tooth

722‧‧‧Sliding trough

8‧‧‧Flexible components

9‧‧‧ support

90‧‧‧Clock seat

91‧‧‧ring groove

92‧‧‧Second Jointing Department

921‧‧‧Second snap teeth

922‧‧‧stop shoulder

93‧‧‧Connection slot

94‧‧‧Clamps

95‧‧‧First spring

96‧‧‧Card hook

97‧‧‧Quick release press

98‧‧‧First connector

99‧‧‧Second connection

990‧‧‧ pivot shaft

991‧‧‧ Gears

992‧‧‧Second spring

993‧‧‧ Third Joint Department

Figure 1 is a schematic view of a child seat in accordance with an embodiment of the present invention.

2 is a schematic view showing the appearance of a rotating rack according to an embodiment of the present invention.

Figure 3 is a schematic view showing the explosion of the components of the rotating rack according to the embodiment of the present invention.

Figure 4 is a partial cross-sectional view showing the rotating rack of the embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view showing a support base according to an embodiment of the present invention.

Figure 6 is a schematic cross-sectional view showing a rotating rack according to an embodiment of the present invention.

Fig. 7 is an enlarged schematic view of the area A in Fig. 6.

Figure 8 is a schematic view of the components of the support base of the embodiment of the present invention.

Figure 9 is an enlarged schematic view of the B area in Figure 8.

Figure 10 is a schematic view of the components of the positioning seat of the embodiment of the present invention.

Figure 11 is a schematic view showing the connection between the rotating rack and the child seat according to the embodiment of the present invention.

Figure 12 is a cross-sectional view showing another portion of the rotating rack of the embodiment of the present invention.

Figure 13 is an enlarged schematic view of the area C in Fig. 12.

Figure 14 is a schematic view showing the appearance of a rotating rack according to another embodiment of the present invention.

Figure 15 is a schematic view showing the explosion of the components of the rotating rack according to another embodiment of the present invention.

Figure 16 is a partial cross-sectional view showing a rotary rack according to another embodiment of the present invention.

Figure 17 is an enlarged view of the D area in Figure 16.

Please refer to Figure 1, Figure 2 and Figure 3. Figure 1 is a schematic view of a child seat 2 in accordance with an embodiment of the present invention. FIG. 2 is a schematic view showing the appearance of the rotating rack 1 according to the embodiment of the present invention. FIG. 3 is a schematic view showing the explosion of the components of the rotating rack 1 according to the embodiment of the present invention. The rotary rack 1 of the present invention is mounted on the child seat 2 and is used to hold a container 4. The rotating rack 1 comprises a storage table 3, a fixing base 6, a positioning seat 7, an elastic member 8, and a supporting seat 9. The storage platform 3 includes a pivoting portion 32 and at least one receiving space. As shown in FIG. 3, a first accommodating space 30 and a second accommodating space 31 are formed at two ends of the stage 3. The first accommodating space 30 and the second accommodating space 31 can be used to place a cup or hold food for the parents to take care of feeding the child. In addition, a first engaging structure is formed on the first accommodating space 30 and the second accommodating space 31, and another engaging structure is formed on the container 4 correspondingly, and the combination between the engaging structures can fix the container 4 The first accommodating space 30 or the second accommodating space 31 is included. In the present embodiment, the container 4 is placed in the second accommodating space 31, and an upper cover 5 is disposed on the container 4, and the shape of the container 4 corresponds to the shape of the second accommodating space 31. A recessed hole 310 is formed in an inner side wall of one of the second accommodating spaces 31, and a convex point 41 is formed on an outer side wall of the container 4 for engaging with the recessed hole 310, thereby fixing the container 4 more stably. In the second accommodating space 31.

Please refer to FIG. 4, which is a partial cross-sectional view of the rotating rack 1 according to an embodiment of the present invention. The pivoting portion 32 is formed with a pivoting portion 32. The pivoting portion 32, the first accommodating space 30 and the second accommodating space 31 can be integrally formed, and the storage platform 3 is further formed with a connecting cavity 33. The connection chamber 33 has an opening. In this embodiment, the cross section of the connecting cavity 33 is a rectangle, but is not limited thereto, and the cross section of the connecting cavity 33 may have other shapes. The fixing base 6 is fixedly disposed on one end of the connecting cavity 33 away from the opening and abuts against the inner side wall of one of the connecting chambers 33. The fixing base 6 includes a hollow chamber, and one end of the hollow chamber is formed with an opening, and the inner side of the fixing base 6 is protruded to form two elastic arms 60.

Please refer to Figures 5 to 7. Fig. 5 is a schematic cross-sectional view showing a support base 9 according to an embodiment of the present invention. Fig. 6 is a schematic cross-sectional view showing a rotating rack 1 according to an embodiment of the present invention. Fig. 7 is an enlarged schematic view of the area A in Fig. 6. The support base 9 is connected to the storage platform 3, and one end of the support base 9 has a latching seat 90. One end of the latching seat 90 is formed with an annular groove 91. The latching seat 90 is pivotally connected to the fixing base 6 so that The support base 9 is pivotally connected to the storage platform 3, and the two elastic arms 60 are engaged in the annular groove 91. In this way, the storage table 3 can be pivoted relative to the support base 9 and the storage table 3 can be engaged with the support base 9 by the two elastic arms 60 so that the storage table 3 does not disengage from the support base 9 when it is pivoted. Support seat 9.

Please continue to refer to Figures 5 through 7. The positioning base 7 is disposed in the connecting cavity 33 so as to be slidable up and down. More specifically, the positioning seat 7 is disposed in one end of the opening portion of the connecting cavity 33 adjacent to the connecting cavity 33, and the shape of the positioning seat 7 corresponds to In the shape of the connection cavity 33. In this embodiment, the cross-sectional shape of the positioning seat 7 can be a rectangle. In this way, the positioning seat 7 can be circumferentially fixed in the connecting cavity 33 of the table 3, and the positioning seat 7 also rotates when the table 3 pivots.

Please refer to Figures 7 to 10. Figure 8 is a schematic view of the components of the support base 9 in accordance with an embodiment of the present invention. Figure 9 is an enlarged schematic view of the B area in Figure 8. Figure 10 is a schematic view showing the components of the positioning base 7 of the embodiment of the present invention. A first engaging portion 72 is disposed at one end of the positioning base 7 facing the supporting base 9. The first engaging portion 72 protrudes from the end of the positioning seat 7. The first engaging portion 72 includes a plurality of first engaging portions. The tooth 721, in this embodiment, the first engaging portion 72 includes 12 first engaging teeth 721 arranged equidistantly, and the angle of any two adjacent first engaging teeth 721 is substantially 30 degrees. A second engaging portion 92 is disposed on the support base 9 corresponding to one end of the positioning base 7. The second engaging portion 92 includes a plurality of second engaging teeth 921. In this embodiment, the second engaging portion 92 is provided. Correspondingly, there are 12 equally spaced second engaging teeth 921, and the second engaging teeth 921 are disposed around one central axis of the engaging seat 90, and the angle of any two adjacent second engaging teeth 921 It is essentially 30 degrees. As shown in FIG. 7, the elastic member 8 is disposed between the fixing base 6 and the positioning seat 7, and is used to drive the first engaging teeth 721. Engaged in the second engaging teeth 921, thereby pushing the positioning seat 7 close to the support base 9. In this way, by the cooperation of the first engaging teeth 721 and the second engaging teeth 921, the first engaging portion 72 can be selectively engaged with the second engaging portion 92, so the storage table 3 is opposite to the support base. After 9 rotation, it can be fixed to the support base 9. One of the outer side walls of the engaging seat 90 is formed with a stop shoulder 922. One inner side wall of the positioning seat 7 is formed with a sliding groove 722, and the sliding groove 722 can be a circular arc-shaped recessed structure. In this embodiment, the sliding slot 722 is an arc chute, and the arc chute has an angle of substantially 180 degrees, and the stop shoulder 922 is slidably mounted in the sliding slot 722, and The stop shoulder 922 slides in the sliding groove 722 when the positioning seat 7 rotates to limit the rotation angle of the stage 3 with respect to the support base 9.

Please also refer to Figure 1, Figure 3 and Figure 8. The stop shoulder 922 is disposed on one side of the support seat 9 adjacent to the child seat 2, and the sliding groove 722 is disposed on the positioning seat 7 with respect to the left side or the right side of the child seat 2, the stop shoulder 922 and the sliding groove 722. The cooperation can limit the angle of rotation of the stage 3 relative to the support base 9. In the present embodiment, the second accommodating space 31 has a longer length than the first accommodating space 30, and the second accommodating space 31 can only rotate in a direction away from the child seat 2. Since the second accommodation space 31 does not rotate toward the child seat 2, it is possible to avoid a child colliding with the child seat 2 due to the rotation. The stop shoulder 922 can be disposed at any position of the outer side wall of the engaging seat 90, and the sliding groove 722 of the positioning seat 7 is disposed at a corresponding position to achieve the purpose of restricting the rotation direction of the stage 3.

Please also refer to Figures 11 to 13. Figure 11 is a schematic view showing the connection of the rotating rack 1 and the child seat 2 according to the embodiment of the present invention. Figure 12 is a cross-sectional view showing another portion of the rotating rack 1 of the embodiment of the present invention. Figure 13 is an enlarged schematic view of the area C in Fig. 12. As shown in FIG. 11, the child seat 2 includes a T-shaped connecting portion 20, and an engaging hole 21 is formed in the connecting portion 20. The support base 9 is further provided with a connecting groove 93, and the T-shaped connecting portion 20 is inserted and connected to the connecting groove 93, thereby mounting the rotating rack 1 on the child seat 2.

More specifically, the rotating rack 1 further includes a latching member 94 and a first spring 95. A central portion of the engaging member 94 is pivotally connected to the supporting base 9. One end of the engaging member 94 forms a card. The first hook spring 95 is disposed between the inner side wall of the support base 9 and the quick release pressing portion 97, and the first spring 95 can drive the snap hook 96 to engage. Engaged in the hole 21. When the quick release pressing portion 97 is pressed, the engaging hook 96 is disengaged from the engaging hole 21 to disengage the rotating shelf 1 from the child seat 2.

Please refer to Figures 14 to 17. Figure 14 is a schematic view showing the appearance of a rotating rack 1 according to another embodiment of the present invention. Figure 15 is a schematic view showing the explosion of the components of the rotating rack 1 according to another embodiment of the present invention. Figure 16 is a partial cross-sectional view showing a rotary rack 1 according to another embodiment of the present invention. Figure 17 is an enlarged view of the D area in Figure 16. This embodiment differs from the previous embodiment in that the container 4 is disposed in the first accommodating space 30, and the support base 9 is a rotatable structure. The differences between the embodiment and the foregoing embodiment will be described in detail below. The components having the same reference numerals as those of the foregoing embodiments have the same functions and structures, and will not be described again.

In this embodiment, the support base 9 further includes a first connecting member 98 and a second connecting member 99. One end of the second connecting member 99 is formed with a pivot shaft 990, and one end of the first connecting member 98 is pivoted. The 990 is pivotally connected to the second connecting member 99. The axial direction of the pivot shaft 990 extends in a horizontal direction to pivot the first link 98 relative to the second link 99 in a front-rear direction of the child seat 2. The engaging seat 90 is disposed at the other end of the first connecting member 98, and the other end of the second connecting member 99 is provided with a connecting groove 93 and a engaging member 94 for connecting to the child seat 2. A positioning mechanism is disposed between the first connecting member 98 and the second connecting member 99 for fixing the first connecting member 98 to the second connecting member 99. The positioning mechanism can include a gear 991, a second spring 992, and a third engaging portion 993. The gear 991 is slidably sleeved on the pivot shaft 990, and the second spring 992 is disposed between the gear 991 and the first connecting member 98. The third engaging portion 993 is disposed on the second connecting member 99 and surrounds the pivot shaft 990. The third engaging portion 993 can include a plurality of third engaging teeth, and the second spring 992 is attached to the first connecting member. 98 drive gear 991 selectively rotates The third engaging portion 993 is engaged with the third engaging portion 993. The present invention is not limited thereto. For example, the third engaging portion 993 may be disposed on the first connecting member 98, and the second spring 992 is disposed between the gear 991 and the second connecting member 99.

The operation of tilting the stage 3 with respect to the child seat 2 in this embodiment will be described below. When the first connecting member 98 is rotated, the gear 991 compresses the second spring 992 and is disengaged from the third engaging tooth of the third engaging portion 993. The first connecting member 98 can drive the gear 991 to slide on the pivot shaft 990. After the first connecting member 98 is rotated to a predetermined position, the second spring 992 abuts against the gear 991 to re-engage the gear 991 to the third engaging portion 993, and the first connecting member 98 can be fixed to the second connecting member. 99. In this way, the inclination angle of the storage table 3 relative to the child seat 2 can be adjusted, so that the rotating storage rack 1 of the embodiment can facilitate the entry and exit of the child into the child seat. Therefore, in combination with the present embodiment and the foregoing embodiment, the stage 3 can be changed in angle to facilitate entry and exit of the child, and when the inclination angle of the child seat 2 is changed, the inclination of the stage 3 can be adjusted so as to maintain the level with the ground. By avoiding the inclination of the child seat 2, the articles placed on the stage 3 are dropped or splashed.

Compared with the prior art, one end of the storage rack of the rotating rack of the present invention is provided with a connecting cavity, and the fixing seat is fixed in the connecting cavity, and one end of the supporting seat protrudes with a clamping seat and is pivotally connected in the fixing seat, and the storage platform It can be rotated relative to the support base. At the same time, the positioning seat is slidably disposed in the connecting cavity of the storage table and fixed in the circumferential direction of the connecting cavity. When the storage table rotates, the positioning seat also rotates. The elastic element is disposed between the fixing seat and the positioning seat, the positioning seat is provided with a first engaging portion, and the supporting seat is correspondingly provided with a second engaging portion. When the storage table rotates, the positioning seat compresses the elastic element and is connected The cavity slides upward, and the first engaging portion is disengaged from the second engaging portion, and the angle of the table relative to the child seat can be adjusted. When the angle adjustment ends, the spring drive positioning seat slides downward to engage the first engaging portion with the second engaging portion, and the positioning seat is fixed to the support base. Therefore, the present invention can be lifted before the rotating shelf is removed, and the relative angle between the storage table and the child seat can be adjusted by rotating the storage table to facilitate the child to enter and exit the child seat, which has the advantages of simple operation and quick operation.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

1‧‧‧Rotating rack

2‧‧‧Children's seat

4‧‧‧ Container

Claims (16)

An adjustable angle rotating rack is mounted on a child seat and is used for placing a container. The rotating rack comprises: a storage rack including a connecting cavity; and a fixing base fixedly disposed The locating seat is slidably inserted into the connecting cavity, and the positioning seat is disposed at a side of the fixing seat with a first engaging portion; an elastic component is disposed Between the fixing seat and the positioning seat; and a supporting base connected to the loading table, the supporting seat protrudes from one end of the positioning seat and has a engaging seat and a second engaging portion. The engaging seat is inserted and pivoted in the connecting cavity. When the first engaging portion is disengaged from the second engaging portion, the loading table is rotatable relative to the supporting seat, and when the elastic member drives the When the first engaging portion is engaged with the second engaging portion, the storage table is locked to the supporting base. The rotating rack of claim 1, wherein the positioning seat is circumferentially fixed and slidably disposed in the connecting cavity, and the positioning seat is disposed at one end of the second engaging portion. The first engaging portion protrudes from the end of the positioning seat. The rotating rack of claim 2, wherein the first engaging portion includes a plurality of first engaging teeth, and the second engaging portion correspondingly includes a plurality of second engaging teeth and surrounding the card One of the central axes of the seat is disposed, and the elastic member is configured to drive the plurality of first engaging teeth to engage the plurality of second engaging teeth. The rotating rack of claim 3, wherein the first engaging portion includes 12 first engaging teeth, and the second engaging portion includes 12 second engaging teeth, and any two adjacent teeth The angle between the first engaging teeth or any two adjacent second engaging teeth is substantially 30 degrees. The rotating rack of claim 2, wherein an outer side wall of the engaging seat is formed with a stop shoulder, and an inner side wall of the positioning seat is formed with a sliding groove, and the sliding groove is a circular arc-shaped recessed structure. The stop shoulder is slidably mounted in the sliding groove, and the stop shoulder slides in the sliding groove when the positioning seat rotates. The rotating rack of claim 5, wherein the sliding slot is an arc chute, and the arc chute has an angle of substantially 180 degrees. The rotating rack according to claim 1, wherein the fixing base comprises a hollow chamber, and one end of the hollow chamber is formed with an opening, and an inner side of the fixing base protrudes to form two elastic arms. The rotating rack of claim 7, wherein one end of the engaging seat is formed with an annular groove, the engaging seat is pivotally connected to the fixing seat, and the two elastic arms are engaged in the annular groove. The rotating rack of claim 1, wherein the loading platform further comprises a pivoting portion and at least one receiving space, and the connecting cavity is connected to the pivoting portion. The rotating rack according to claim 9, wherein a recessed hole is formed in one side wall of the accommodating space, the shape of the container corresponds to the shape of the accommodating space, and an outer side wall of the container is formed with a convex shape. The bump is used to engage the recess, thereby fixing the container in the accommodating space. The rotating rack of claim 1, wherein the child seat comprises a T-shaped connecting portion, and the supporting seat is correspondingly provided with a connecting groove, and the T-shaped connecting portion is inserted and connected to the connecting groove. The rotating rack of claim 11, wherein an engaging hole is disposed on the T-shaped connecting portion, the rotating shelf further comprises a engaging member and a first spring, and a central portion of the engaging member The pivoting member is pivotally connected to the support base, and one end of the engaging member is formed with a snap hook and the other end is formed with a quick release pressing portion. The first spring is disposed on an inner side wall of the support base and the quick release pressing portion. Between the hooks being engaged with the engaging holes. The rotating rack of claim 1, wherein the support base further comprises a first connecting member and a second connecting member, wherein the second connecting member has a pivot shaft formed at one end thereof, and the first connecting member is configured by the pivoting shaft The pivot shaft is pivotally connected to the second connecting member. The rotary rack of claim 13, wherein the first connector pivots relative to the second connector in a front-rear direction of the child seat. The rotating rack of claim 14, further comprising a positioning mechanism disposed between the first connecting member and the second connecting member, the positioning mechanism for fixing the first connecting member to the first connecting member On the second connector. The rotary rack of claim 15, wherein the positioning mechanism comprises: a gear slidably sleeved on the pivot shaft; a second spring disposed on the gear and the first connector And a third engaging portion disposed on the second connecting member and surrounding the pivoting shaft, the third engaging portion includes a plurality of third engaging teeth, and the second spring system The gear is driven to selectively engage the third engaging portion when the first connecting member rotates.